Playing a WAVE file in C # using DirectX and streaming?

Question

at the moment, trying to understand how I can play the wave file in C # by filling the secondary buffer with data from the wave file through streams, and then play the wave file.

Any help or sample coding that I can use?

thanks

code example used:

public delegate void PullAudio(short[] buffer, int length); public class SoundPlayer : IDisposable { private Device soundDevice; private SecondaryBuffer soundBuffer; private int samplesPerUpdate; private AutoResetEvent[] fillEvent = new AutoResetEvent[2]; private Thread thread; private PullAudio pullAudio; private short channels; private bool halted; private bool running; public SoundPlayer(Control owner, PullAudio pullAudio, short channels) { this.channels = channels; this.pullAudio = pullAudio; this.soundDevice = new Device(); this.soundDevice.SetCooperativeLevel(owner, CooperativeLevel.Priority); // Set up our wave format to 44,100Hz, with 16 bit resolution WaveFormat wf = new WaveFormat(); wf.FormatTag = WaveFormatTag.Pcm; wf.SamplesPerSecond = 44100; wf.BitsPerSample = 16; wf.Channels = channels; wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8); wf.AverageBytesPerSecond = wf.SamplesPerSecond * wf.BlockAlign; this.samplesPerUpdate = 512; // Create a buffer with 2 seconds of sample data BufferDescription bufferDesc = new BufferDescription(wf); bufferDesc.BufferBytes = this.samplesPerUpdate * wf.BlockAlign * 2; bufferDesc.ControlPositionNotify = true; bufferDesc.GlobalFocus = true; this.soundBuffer = new SecondaryBuffer(bufferDesc, this.soundDevice); Notify notify = new Notify(this.soundBuffer); fillEvent[0] = new AutoResetEvent(false); fillEvent[1] = new AutoResetEvent(false); // Set up two notification events, one at halfway, and one at the end of the buffer BufferPositionNotify[] posNotify = new BufferPositionNotify[2]; posNotify[0] = new BufferPositionNotify(); posNotify[0].Offset = bufferDesc.BufferBytes / 2 - 1; posNotify[0].EventNotifyHandle = fillEvent[0].Handle; posNotify[1] = new BufferPositionNotify(); posNotify[1].Offset = bufferDesc.BufferBytes - 1; posNotify[1].EventNotifyHandle = fillEvent[1].Handle; notify.SetNotificationPositions(posNotify); this.thread = new Thread(new ThreadStart(SoundPlayback)); this.thread.Priority = ThreadPriority.Highest; this.Pause(); this.running = true; this.thread.Start(); } public void Pause() { if (this.halted) return; this.halted = true; Monitor.Enter(this.thread); } public void Resume() { if (!this.halted) return; this.halted = false; Monitor.Pulse(this.thread); Monitor.Exit(this.thread); } private void SoundPlayback() { lock (this.thread) { if (!this.running) return; // Set up the initial sound buffer to be the full length int bufferLength = this.samplesPerUpdate * 2 * this.channels; short[] soundData = new short[bufferLength]; // Prime it with the first x seconds of data this.pullAudio(soundData, soundData.Length); this.soundBuffer.Write(0, soundData, LockFlag.None); // Start it playing this.soundBuffer.Play(0, BufferPlayFlags.Looping); int lastWritten = 0; while (this.running) { if (this.halted) { Monitor.Pulse(this.thread); Monitor.Wait(this.thread); } // Wait on one of the notification events WaitHandle.WaitAny(this.fillEvent, 3, true); // Get the current play position (divide by two because we are using 16 bit samples) int tmp = this.soundBuffer.PlayPosition / 2; // Generate new sounds from lastWritten to tmp in the sound buffer if (tmp == lastWritten) { continue; } else { soundData = new short[(tmp - lastWritten + bufferLength) % bufferLength]; } this.pullAudio(soundData, soundData.Length); // Write in the generated data soundBuffer.Write(lastWritten * 2, soundData, LockFlag.None); // Save the position we were at lastWritten = tmp; } } } public void Dispose() { this.running = false; this.Resume(); if (this.soundBuffer != null) { this.soundBuffer.Dispose(); } if (this.soundDevice != null) { this.soundDevice.Dispose(); } } } 

}

The concept is the same as im, but I can’t get the wave byte [] dataset for playback

Answer 1

I didn’t do it.

But the first thing I would look at is XNA.

I know that the C # direct control project has been removed in favor of XNA, and I have found this to be good for graphics - I prefer to use it for directx.

Answer 2

What is the reason you decided not to use a sound player, according to this msdn entry below?

  private SoundPlayer Player = new SoundPlayer(); private void loadSoundAsync() { // Note: You may need to change the location specified based on // the location of the sound to be played. this.Player.SoundLocation = http://www.tailspintoys.com/sounds/stop.wav"; this.Player.LoadAsync(); } private void Player_LoadCompleted ( object sender, System.ComponentModel.AsyncCompletedEventArgs e) { if (this.Player.IsLoadCompleted) { this.Player.PlaySync(); } } 

Usually I just load them all into a stream or asynchronous delegate, then play or play them if necessary.

Answer 3

You can use DirectSound support in SlimDX: http://slimdx.org/ :-)

Answer 4

You can use nBASS or better FMOD, both are great audio libraries and can work great with .NET.

Answer 5

DirectSound is where you want to go. This is a piece of cake to use, but I'm not sure what formats it can play besides .wav

http://msdn.microsoft.com/en-us/library/windows/desktop/ee416960(v=vs.85).aspx